| 光谱学与光谱分析 |
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| Fluorescence Spectroscopy Characterization of Asphaltene Liquefied from Coal and Study of Its Association Structure |
| WANG Zhi-cai, CUI Xue-ping, SHUI Heng-fu, WANG Zu-shan, LEI Zhi-ping, KANG Shi-gang |
| Anhui Key Laboratory of Clean Coal Conversion & Utilization，School of Chemistry and Chemical Engineering, and Anhui University of Technology, Ma’anshan 243002, China |
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Abstract Structure and association of asphaltenes from coal direct hydroliquefaction were studied by fluorescence spectrometry and UV-Vis absorption spectrometry in this paper. The results indicate that asphaltene is aromatic mixtures mainly containing naphthalene nucleus and shows strong fluorescent characteristic. The forming of exciplex between asphaltene and solvent results in the red shift of fluorescence peak and fluorescence quenching of asphaltene that increases with the polarity and electron acceptability. The self-aggregation of asphaltene is formed by non-covalent bond interaction, so that the asphaltene liquefied at higher temperture that shows high aromaticity has stronger association than that liquefied at lower temperature. Aggregation of asphaltene has been found to be a gradual process, in which there is no critical aggregation constant observed, and the inflection point of the plot of apparent fluorescence intensity as a function of asphaltene concentration varies with the excitation wavelength.
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Received: 2009-08-02
Accepted: 2009-11-08
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Corresponding Authors:
WANG Zhi-cai
E-mail: zhicaiw@ahut.edu.cn;wzc0101@sina.com
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[1] XU Xiu-feng, ZHANG Peng-zhou, YANG Bao-lian, et al(徐秀峰, 张蓬洲, 杨保联, 等). Journal of Fuel Chemistry and Technology(燃料化学学报), 1995, 23(4): 410.
[2] ZHANG Ping, PAN Tie-ying, SHI Xin-mei, et al(张 娉, 潘铁英, 史新梅, 等). Chinese Journal of Magnetic Resonance(波谱学杂志), 2006, 23(1): 41.
[3] Kaoru M, Osamu O, Takashi N, et al. Fuel, 1996, 75(3): 295.
[4] Alan A H, Brian J S, Roger E T, et al. Fuel, 1993, 72(9): 1317.
[5] John E P, Chris A F J, Philip J, et al. Fuel, 1993, 72(10): 1381.
[6] Ana R H, Paola H, Bruno M H, et al. Energy Fuels, 2007, 21(5): 2863.
[7] Li C Z, Wu F, Xu B, et al. Fuel, 1995, 74(1): 37.
[8] Scott R T, Norman C L. Fuel, 1978, 57(2): 117.
[9] GU Xiao-hui, SHI Shi-dong, ZHOU Ming(谷小会, 史士东, 周 铭). Journal of China Coal Society(煤炭学报), 2006, 31(6): 785.
[10] Albuquerque F C, Nicodem D E, Rajagopal K. Applied Spectroscopy，2003, 57(7): 805.
[11] Goncalves S, Castillo J, Fernandez A, et al. Fuel, 2004, 83(13): 1823.
[12] Yokota T, Scriven F, Montgomery D S, et al. Fuel, 1986, 65(8): 1142.
[13] Schneider M H, Andrews A B, Kirtley S M, et al. Energy and Fuels, 2007, 21(5): 2875.
[14] Ghosh A K, Srivastava S K, Bagchi S. Fuel, 2007, 86(16): 2528.
[15] Wang Z C, Shui H F, Zhang D X, et al. Fuel, 2007, 86(5-6): 835.
[16] Dyrkacz G. Energy and Fuels, 2001, 15(4): 918.
[17] CHEN Guo-zhen, HUANG Xian-zhi, ZHENG Zhu-zi, et al(陈国珍, 黄贤智, 郑朱梓，等). Fluorimetry(2nd ed)(荧光分析法·第2版). Beijing: Science Press(北京：科学出版社), 1990.
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